JP2571004Y2 - Moving agricultural machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile agricultural machine such as a walking rice transplanter, in which a worker performs a steering operation while following a rear side of the machine and continuously performs rice transplanting.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Laid-Open Publication No.
As shown, the rolling center is
And a rolling sensor
To the left and right and the rolling sensor
A hydraulic valve that switches by
There is a technology for operating a cylinder by a hydraulic valve .

[0003]

The present invention is to provide a said prior art, low
A long hole is formed in the middle of the ring sensor
A pin is provided at the end of the spool of the pressure valve, and the pin is elongated.
To connect the spool to the rolling sensor
From the installation position of the rolling sensor and hydraulic valve.
Adjust the neutral position of the rolling sensor and hydraulic valve
It is necessary to set it and it is easy to improve the workability of disassembly and assembly.
And the vertical center line of the rolling sensor
Oil in a position to slide the spool in a direction substantially perpendicular to
The pressure valve must be fixed and must be
Rolling sensor and horizontal direction to slide the spool
The combination of a hydraulic valve that is long
Installation location is easily restricted and installation width in the horizontal direction is reduced.
Problems such as difficulty in achieving compactness due to
There is .

[0004]

According to the present invention, a bearing is provided.
Hang the rolling sensor on the spindle to be mounted via
The rolling sensor is swung left and right by the machine
And switching by rolling sensor left and right swing
The hydraulic cylinder is provided with
In mobile agricultural machines operated by
Attach the upper end of the rolling sensor to the support shaft
And fix one end of the sensor arm to the support shaft.
Adjustment spool on the hydraulic valve spool.
Screw on the adjustment bolt and the sensor arm
With a circular protuberance of the
Since the sensor arm is fixed to the
Hydraulic valve is turned upward just by selecting the arm mounting angle
Can be easily installed in any position, etc.
Conventional equipment, such as limited
You can easily get rid of the condition and screw it to the spool.
Since the sensor arm is engaged with the adjustment bolt
After fixing the ring sensor and hydraulic valve,
Operation to adjust the neutral position of the hydraulic valve.
Easy to compact and improve the workability of disassembly and assembly
It is possible to achieve.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory rear view of a main part, FIG. 2 is an overall side view of a walking rice transplanter for two-row planting, FIG. 3 is a plan view of the same, FIG. In the figure, (1) is an engine, (2) is a transmission case, (3) is a planting case connected to the rear of the transmission case (2) via a transmission pipe (4), and (5) is a planting case. Steering handles connected to the planting case (3) via the handle frame (6), (7) and (7) are left and right swing cases (8) and (8) on the left and right sides of the transmission case (2).
A pair of left and right paddy traveling wheels supported up and down freely via
(9) is a low-back and high-high two-row planting seedling mount that is reciprocally slidably mounted on the upper side of the handle frame (6) via guide rails (10) and (11). Seedling claw which is attached to the planting case (3) via the planting arm (13) to take out one plant seedling from the planting stand (9) and plant it in the field. (14) is a fertilizer tank (14a). A fertilizer feeding case (15), a side groove fertilizer having a fertilizer device (16), etc., and performing fertilization along the seedling planting position inside the planting claw (12). (17) is the engine ( 1) Engine stand (1)
8) and a single planting leveling float supported below the handle frame (6) via a front link (19) and a planting depth adjustment lever (20); (1) a bonnet covering the upper side of the engine fuel tank (22) and the like;
8) A bumper fixed to the front end, (24) a main speed change lever, (25) a recoil lever, (26) a left and right side clutch lever, (27) a planting clutch lever, (2)
8) is a hydraulic lifting lever, (29) is a main clutch lever,
(30) is a seedling collection adjusting lever.

The transmission pipe (4) is disposed in the front-rear direction at the center of the fuselage, and the front end flange (4a) is detachably mounted and fixed to the rear end of the transmission case (2), and the rear end is formed of sheet metal. The T-shaped planting case (3) is fixed to the shaft insertion opening (3a) by welding, and the front end of the handle frame (6) is fixed to the rear surface of the planting case (3) by welding. 4), the planting case (3) and the handle frame (6) are welded together to form a planting claw (1).
It is configured to improve the mounting accuracy between 2) and the seedling mounting table (9).

The transmission pipe (4) comprises two relatively small-diameter left and right pipes (32) (32) having a front end fixed to the upper end of a fixed bracket (31) on the rear side surface of the transmission case (2). The transmission case (2) is extended upward to the base end of the handle frame (6) downwardly after being viewed from the side and fixed to the left and right sides of the frame (6) by welding.
The pipes (4), (32) and (32) are integrally connected to form a triangle in a side view between the steering wheel and the handle frame (6), and the three pipes (4), (32) and (32) are lightweight. This makes the aircraft excellent in bending and torsional rigidity.

As shown in FIG. 5, a transmission shaft (33), which is a PTO shaft of the transmission case (2), is inserted into the transmission pipe (4), and the planting transmission shaft (33) is used for the planting. It drives a planting arm (13) supported on both left and right sides of the case (3). The planting arm (13)
The transmission pipe (4) and the upper left and right pipes (3
2) (32) through the front pivot plate (34) and behind the pivot plate (34) the transmission pipe (4) and the left pipe (3).
And 2) are integrally connected to each other via a rear attachment plate (35), and the right and left pipes (32) and (32) themselves are directly fixed to the handle frame (6) behind the planting arm (13). These pipes (4) (32) (32), the frame (6) and the pivot plate (3)
4) By forming a closed space according to (35),
Displacement prevention of the arm drive shaft (13a) mounting portion of the planting arm (13) (the shaft (13a) mounting portion is displaced with respect to the seedling mounting table (9) due to the uneven load due to the crank motion of the planting arm (13). To stabilize the yield of seedlings.

As shown in FIG. 3, the left and right pipes (32) (3)
2) Front and rear horizontal plates (36a) (36)
b) The horizontal feed chain case (37) is integrally connected on top,
A transverse feed chain (38) is stretched in the chain case (37), and a transverse feed body (39) attached to the chain (38).
6 is engaged with the front side of the seedling mounting table (9).
The seedling table lateral feed screw shaft (40) is provided between the transmission case (2) and the rear attachment plate (35).
The slide (41) to be connected to the seedling table lateral feed screw (40a) of (0) is connected to the lateral feed chain (38), and the screw shaft (40) is output by the transmission case (2).
Is rotated to reciprocate the slider (41) back and forth, so that the traversing body (39) is reciprocated left and right via the chain (38) to traverse the seedling mounting table (9). It is composed.

Further, as shown in FIGS. 6 and 7, an input shaft (42), a traveling speed change shaft (43), and a traveling speed change output shaft (4).
4) A pair of left and right traveling output shafts (45) (45), a stock change shaft (46), and a planting output shaft (47) are provided on the transmission case (2), and an output pulley of the engine (1) is provided. A hydraulic pump (50) and a hydraulic valve (5) are connected to an input pulley (49) connected to the input shaft (42) by a left end and connected to a right end of the input shaft (42).
Hydraulic pump device (5) in which 1) is integrated into the same block
2) is fixed to the right side of the transmission case (2), and the transmission shaft (5) is inserted into the swing case (8).
3) Bevel gear (5) with front end connected to the travel output shaft (45).
4), and the rear end of the transmission shaft (53) is connected to the axle (55) via a bevel gear (56).

Further, as shown in FIGS. 7 and 8, a rearwardly inclined bracket (5) is provided on the rear upper surface of the transmission case (2).
7) A lifting cylinder (58) is attached via the cylinder (58), and the piston rod (6) of the cylinder (58) is mounted on a slider (59) slidably provided on the left and right pipes (32) and (32).
0) The tip is connected and fixed, and the slider (59) is reciprocated back and forth by the cylinder (58) by the guide of the pipe (32), and the cylindrical body (62) through which the rolling shaft (61) is inserted is inserted into the slider (62). 59), a rolling cylinder (64) is attached to the cylinder (62) via a bracket (63), and the piston rod (65) of the cylinder (64) is linked to the rolling shaft (61) by a link (6).
6) and a rolling shaft (6) via a link (67) and a rod (68) and an arm (69).
1) The left and right swing cases (8) and (8) are connected to both ends, and the slider (5) is moved by an elevating cylinder (58).
9) is slid to simultaneously raise or lower the left and right traveling wheels (7) and (7) in the same direction, while rotating the rolling shaft (61) by the rolling cylinder (64) to move one traveling wheel (7). The lower running wheel (7) is raised to tilt the body to the left and right.

Further, bearings (7) are mounted on the engine stand (18).
The pitching sensor arm (71) is mounted via the above (0), and the arm (71) whose tip is brought into contact with the front upper surface of the float (17) is connected to the rotary shaft (72) for lifting operation of the hydraulic device (52). The lift (17) is detected by the arm (71), and the raising / lowering cylinder (58) is automatically controlled to adjust the planting depth of the planting claw (12) so as to keep the planting depth substantially constant. A pendulum-type rolling sensor (74) is provided via a bearing (73) on a right rear portion of the transmission case (2), and the rolling sensor (74) is connected to a rolling operation spool (75) of a hydraulic device (52). The sensor (74) detects the lateral inclination of the machine and automatically controls the rolling cylinder (64) to perform horizontal control for supporting the machine substantially horizontally.

Further, as shown in FIGS. 7 and 8, an engine mount (18) is fixed to the front side of the transmission case (2), and a bolt (1a) is fixed to the front of the engine (1) on the upper surface of the engine mount (18). The rear part of the engine (1) is fixed to the transmission case (2) with bolts (1b) fixed on the front upper surface, and the main clutch arm (76) and the left and right side clutch arms (77) (77) are fixed to the transmission case (2). A transmission lever (79), an inter-stock switching case (80), and a seedling platform lateral feed transmission lever (81) are arranged on the front upper surface, and are connected to the left side of the transmission case (2) provided with the input pulley (49). At the rear.

Further, as shown in FIGS. 1, 9 and 10,
The pendulum-type rolling sensor (74) is suspended along the right side surface in the space on the rear right side of the transmission case (2), and the bearing (73) is fixed to the upper surface of the transmission case (2) by bolts (82). The upper part of the rolling sensor (74) is supported via the support shaft (83) so as to be swingable only in the left-right direction, and the support shaft (8) is attached to the sensor (74).
The base end of the sensor arm (84) is integrally fixed via 3), and the tip of the sensor arm (84) is engaged and connected to an adjustment bolt (85) at the end of the spool (75) of the rolling control hydraulic valve (51). The spool (75) of the valve (51) is directly switched by swinging the rolling sensor (74) in the left-right direction, and the rolling cylinder (64) is operated to move one of the left and right running wheels (7) (7). It is configured so that it is moved up and down so that the other is lowered, and horizontal control for correcting the left-right inclination of the machine is automatically performed.

As is clear from the above, the bearing (73) is
Rolling sensor (7)
4) Suspend the rolling center
The rocker (74) is swung left and right,
The hydraulic valve (5
1) is provided, and the rolling cylinder (64) is connected to a hydraulic valve.
(51) In the mobile agricultural machine operated by (51), the bearing
Roller on the support shaft (83) to be rotatably supported on (73)
The upper end of the sensing sensor (74) is fixed
One end of the sensor arm (84) is integrally fixed to the shaft (83)
And the spool (7) of the hydraulic valve (51)
5) Fix the adjustment bolt (85) with a screw
Circular bulge of sensor arm (84) in head groove of (85)
Are engaged. And low through the support shaft (83)
The sensor arm (84) is fixed to the ring sensor (74).
Only select the mounting angle of the sensor arm (84)
Attach the hydraulic valve (51) to the upward position with
The installation location of the valve (51) is restricted or
In addition to eliminating the conventional problems such as an increase in the mounting width,
To the adjustment bolt (85) to fix the screw to the pool (75)
Engaging the sensor arm (84), the rolling sensor
Adjustment after fixing (74) and hydraulic valve (51)
Neutral adjustment of hydraulic valve (51) by operating bolt (85)
And make it more compact and disassembly and assembly work
It is designed to improve the performance.

The transmission case (2) is provided with a leftward stopper bolt (86), the bearing (73) is provided with a rightward stopper bolt (87), and the right and left inclination restricting portion (74a) of the rolling sensor (74) is provided. The rolling sensor (7) is brought into contact with each of the bolts (86) and (87).
4) The swing of the bearing (7) is regulated,
3) A mounting posture adjusting bolt (88) is provided, the bolt (88) is screwed to the bearing (73), and the head of the bolt (88) is brought into contact with the upper surface of the transmission case (2), and the bearing (7)
3) It is configured to adjust the mounting angle in the front-rear direction and the like.

The spool (7) of the valve (51)
5) A washer (90) is fixed to the bolt (85) via a rotation preventing nut (89) of the bolt (85), and the washer (90) is fixed.
And a lock arm (91) for removably engaging the spool (75) at a neutral position and supporting the spool (75) at a neutral position, and a base end of the lock arm (91) via a fulcrum bolt (92) on the lower surface of the bearing (73). Is rotatably mounted, and a fulcrum spring (9) is provided between the adjustment bolt (88) and the lock arm (91).
3) to extend the lock arm (91) in the non-operating position (solid line in FIG. 9) or the operating position (virtual line in FIG. 9) by the spring (93), and the valve provided with the spool (75). (51) and the bearing (73) provided with the lock arm (91) are integrally fixed to the transmission case (2), respectively, and the lock arm (91) is used to wash the washer (9).
The spool (75) is neutrally supported via (0), the spool (75) can be securely locked by a simple operation, and the neutral range of the spool (75) is narrowed to improve the accuracy of the rolling control. doing.

[0018]

As is clear from the above embodiment, the present invention is characterized in that the support shaft (83) mounted via the bearing (73) has a low
Hang the ring sensor (74) and tilt the machine
When the rolling sensor (74) is swung left and right
The switching is performed by the left and right swing of the rolling sensor (74).
A hydraulic cylinder (51)
Movement for actuating (64) by hydraulic valve (51)
In an agricultural machine, a support rotatably supported on a bearing (73).
The upper end of the rolling sensor (74) is fixed integrally to the shaft (83).
And a sensor arm (84) is attached to the support shaft (83).
Of the hydraulic valve (5)
1) Screw the adjustment bolt (85) onto the spool (75)
And set the sensor arm in the groove of the head ring of the adjustment bolt (85).
(84) with the circular bulge engaged with the support shaft (83)
To the rolling sensor (74) via the sensor arm (8).
4), the sensor arm (84) must be
Hydraulic valve (51) is in the upward position only by selecting the mounting angle
Hydraulic valve (51)
Installation location is limited or the mounting width in the horizontal direction is large.
Can be easily eliminated.
And an adjustment bolt (8) to be screwed to the spool (75).
5) The sensor arm (84) is engaged with the
The hydraulic pressure sensor (74) and the hydraulic valve (51).
After that, the hydraulic valve (5
1) Neutral adjustment can be performed, making it more compact than before.
Thus, it is possible to easily improve the workability and the workability of disassembly and assembly .

[Brief description of the drawings]

FIG. 1 is an enlarged view of a rolling sensor unit.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view showing an airframe structure.

FIG. 5 is a plan view of the same.

FIG. 6 is a plan view of a traveling drive unit.

FIG. 7 is a side view of the front side of the machine.

FIG. 8 is a plan view of the same.

FIG. 9 is a plan view of a rolling sensor.

FIG. 10 is a rear view of the same.

[Explanation of symbols]

(51) Hydraulic valve (73) Bearing (74) Rolling sensor (75) Spool (83) Support shaft (84) Sensor arm (85) Adjustment bolt

Claims (1)

(57) [Scope of request for utility model registration] 1. A support shaft (8) mounted via a bearing (73).
3) Hang the rolling sensor (74) on the left and right
The rolling sensor (74) is swung right and left by the inclination.
Of the rolling sensor (74).
A hydraulic valve (51) for switching
Activating the cylinder (64) by the hydraulic valve (51)
Mobile agricultural machine that is rotatably supported by bearings (73).
The upper end of the rolling sensor (74) to the support shaft (83)
And a sensor arm attached to the support shaft (83).
(84) and one end of the hydraulic
Adjusting bolt (85) on spool (75) of lube (51)
Screw into the head ring groove of the adjustment bolt (85).
A mobile agricultural machine characterized by engaging a circular protuberance of a surarm (84) .